ALAMEDA — The Raiders will host two joint-practice sessions with the Detroit Lions at their Napa training camp in the days preceding their preseason opener at the Coliseum on Aug. 10, the Bay Area News Group has learned.

The teams are expected to announce the plans Friday. Sessions will be held with the Lions on Aug. 7 and 8 on the grounds of Redwood Middle School behind the Napa Valley Marriott.

Raiders coach Jon Gruden expressed his hopes earlier of getting some work against another team.

“We’re trying to work that out,” Gruden said last month.

The last time the Raiders practiced against a different team during camp was 2014, when they had two lively sessions against the Dallas Cowboys in Oxnard which included player scuffles and an incident along one field where fans got involved.

The last opponent to visit Napa was the 49ers under Mike Singletary in 2009 while the Raiders were being coached by Tom Cable. Those sessions were memorable because of the Raiders offense struggling with quarterback JaMarcus Russell and the 49ers intercepting seven passes.

Other preseason opponents for the Raiders include the Los Angeles Rams on the road Aug. 18, a home game against the Green Bay Packers Aug. 24 and the Seattle Seahawks in Oakland on Aug. 30.The Raiders hold their final OTA session open to the media Tuesday and have their mandatory veteran minicamp June 12-14. Players are off at that point until the July 26 reporting date in Napa.

Training camp practices are closed to the general public although season ticket holders can schedule attendance through the team.